US20150137512A1 - Connection pipe and methods of manufacturing and using a connection pipe for an evaporator of a refrigeration device - Google Patents
Connection pipe and methods of manufacturing and using a connection pipe for an evaporator of a refrigeration device Download PDFInfo
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- US20150137512A1 US20150137512A1 US14/101,269 US201314101269A US2015137512A1 US 20150137512 A1 US20150137512 A1 US 20150137512A1 US 201314101269 A US201314101269 A US 201314101269A US 2015137512 A1 US2015137512 A1 US 2015137512A1
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- pipe
- connection pipe
- curvature portion
- curvature
- evaporator
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
-
- F25B41/003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/0073—Butt welding of long articles advanced axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
- F16L13/0218—Welded joints having an inner or outer ring
- F16L13/0236—Welded joints having an inner or outer ring having an outer ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49359—Cooling apparatus making, e.g., air conditioner, refrigerator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49428—Gas and water specific plumbing component making
Definitions
- the present disclosure relates to a connection pipe and methods of and/or using the connection pipe for an evaporator of a refrigeration device, and more particularly, to a connection pipe and methods of manufacturing and/or using the connection pipe for an evaporator of a refrigeration device (e.g., a refrigerator) that can prevent the connection pipe from being deformed, and/or improve rigidity of the connection pipe when installing the evaporator.
- a refrigeration device e.g., a refrigerator
- the evaporator implements some or all of the function(s) in the refrigeration device, which has a refrigeration cycle that includes compression, condensation, expansion, and evaporation.
- a refrigeration device such as a refrigerator
- Refrigerant is used to maintain the low temperature.
- the refrigerant is circulated in a refrigeration cycle that includes compression, condensation, expansion, and evaporation.
- the present disclosure relates to a connection pipe used when installing an evaporator in the refrigeration device.
- the evaporator is configured to include an accumulator.
- the connection pipe connects the accumulator and a suction pipe.
- connection pipe When the connection pipe is connected to the suction pipe, the suction pipe is pushed and/or inserted into the connection pipe.
- the connection pipe requires rigidity.
- connection pipe when the applied force is not appropriately controlled, a specific section of the connection pipe is bent or deformed in a predetermined direction, and may become damaged (e.g., partially or completely closed).
- connection pipe may be abnormally deformed, and the abnormal deformation adversely affects the circulation of the refrigerant.
- the connection pipe may require careful assembly at the time of manufacturing and/or installation of the refrigeration device. Accordingly, the manufacturing and/or installation yield may be lower than desired, a significant amount of time may be required to assemble the connection pipe, and as a result, productivity may decrease.
- connection pipe and methods of manufacturing and/or using the connection pipe for an evaporator capable of preventing the connection pipe from becoming inappropriately bent, damaged, or deformed at the time of installation.
- Embodiments of the present disclosure provide a connection pipe for an evaporator of a refrigeration device that including a first pipe 10 with a first curvature portion; a second pipe with a second curvature portion; and a tube connecting ends of the first pipe and the second pipe.
- the first curvature portion has a first curvature angle (a) that may be larger than 90° and smaller than 180°
- the second curvature portion has a second curvature angle (b) that may be smaller than 90°
- the second pipe has first and second ends that may be at an obtuse angle.
- first curvature portion and/or a single second curvature portion There may be a single first curvature portion and/or a single second curvature portion, and a curvature direction of the first curvature portion and a curvature direction of the second curvature portion may be opposite to each other (e.g., up versus down).
- the first pipe may comprise or consist of aluminum, and the second pipe may comprise or consist of copper.
- the first pipe and the second pipe may be connected to each other by high-frequency welding.
- Embodiments of the present disclosure provide a method of manufacturing and/or using a connection pipe including inserting a first pipe and a second pipe into a tube to physically connect the first pipe and the second pipe; and forming a first curvature portion in the first pipe and a second curvature portion in the second pipe.
- a connection pipe including inserting a first pipe and a second pipe into a tube to physically connect the first pipe and the second pipe; and forming a first curvature portion in the first pipe and a second curvature portion in the second pipe.
- a first curvature angle a of the first curvature portion may be larger than 90° and smaller than 180°
- a second curvature angle b of the second curvature portion may be smaller than 90°
- a first end of the second pipe and a second end of the second pipe may be at an obtuse angle.
- first curvature portion and/or a single second curvature portion There may be a single first curvature portion and/or a single second curvature portion, and a curvature direction of the first curvature portion and a curvature direction of the second curvature portion may be opposite to each other (e.g., up versus down).
- the first pipe, the second pipe, and the tube may be connected to each other by welding (e.g., high-frequency welding).
- welding e.g., high-frequency welding
- connection pipe for an evaporator of a refrigeration device and methods of manufacturing and/or using the connection pipe according to the exemplary embodiments of the present disclosure, even though pressure is applied to the connection pipe to connect it to a suction pipe at the time of installation, deformation of the connection pipe may be prevented due to a structural characteristic of the connection pipe.
- connection pipe does not require excessive care at the time of assembling.
- assembly time may decrease the installation and/or manufacturing yield may increase, and productivity may improve.
- FIG. 1 is a diagram describing a manufacturing method of a connection pipe for an evaporator of a refrigeration device according to a comparative example.
- FIGS. 2 and 3 are diagrams describing a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to a comparative example.
- FIG. 4 is a diagram describing a function of the connection pipe for an evaporator of a refrigeration device according to the comparative example.
- FIG. 5 is a diagram describing a manufacturing method of a connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.
- FIGS. 6 and 7 are diagrams describing a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.
- FIG. 8 is a diagram describing an exemplary function of the connection pipe for an evaporator of a refrigeration device according to the exemplary embodiments of the present disclosure.
- connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to a comparative example will be described with reference to FIGS. 1 to 4 .
- FIG. 1 is a diagram describing a manufacturing method of a connection pipe according to a comparative example.
- FIGS. 2 and 3 are diagrams describing a connection pipe and a manufacturing method of the connection pipe according to a comparative example.
- FIG. 4 is a diagram describing a function of the connection pipe according to the comparative example.
- a first step S 1 includes multi-bending a first pipe 10 .
- the multi-bending is described in more detail below.
- the straight first pipe 10 is bent or angled to have first and second curvature portions 12 and 14 , as illustrated in FIG. 2 .
- the first pipe 10 may be made of aluminum. As a result, the first pipe 10 may have flexibility and in particular, may be easily welded to an accumulator.
- a curvature radius of the first curvature portion 12 and a curvature radius of the second curvature portion 14 may be different from each other.
- a first curvature angle a of the first curvature portion 12 according to the comparative example may be larger than 180° and a second curvature angle b of the second curvature portion 13 according to the comparative example may be larger than 100° and smaller than 180°.
- a second step S 2 includes connecting the first pipe 10 and the second pipe 20 . As illustrated in FIG. 3 , a first end 16 of the first pipe 10 and a first end 22 of the second pipe 20 are inserted into a tube 30 , and the tube 30 is subjected to high-frequency welding. While the welding is performed, a thermal contraction phenomenon may occur, and as a result, the first pipe 10 and the second pipe 20 are physically connected to each other.
- the second pipe 20 may be made of copper. As a result, the second pipe 20 may have high rigidity.
- a third step S 3 includes connecting the connection pipe to the accumulator 60 .
- the first pipe 10 of the connection pipe is connected to the accumulator 60 .
- the evaporator 50 is outside of a wall 400 of the refrigeration device and the accumulator 60 is connected to the evaporator 50 .
- the first pipe 10 and the accumulator 60 are connected to each other by welding, and as a result, a welding portion 62 is formed at a connector of the accumulator 60 .
- a fourth step S 4 includes connecting the connection pipe with a suction pipe 70 .
- the second pipe 20 of the connection pipe is connected to the suction pipe 70 .
- the suction pipe 70 When the suction pipe 70 is connected to the connection pipe, the suction pipe 70 is pressed in the direction indicated by the arrow P, as illustrated in FIG. 4 .
- the force P e.g., pressure
- the force P may be applied to the first pipe 10 , and the first pipe 10 may elastically deformed by the force P.
- a direction of the pressed force may be concentrated on the second curvature portion 14 . Therefore, the second curvature portion 14 may be inappropriately bent, damaged, or deformed.
- the first pipe 10 since aluminum is lower in rigidity than copper, the first pipe 10 may be deformed or damaged in a particular location of relatively high stress and/or strain.
- the working space is relatively small and/or narrow in parts of the refrigeration device where the evaporator 50 is installed, causing inconvenience to the installer during installation. It is difficult to manipulate and connect the connection pipe to the suction pipe 70 . Thus, additional attention and longer installation time are required, decreasing productivity.
- the first pipe 10 may also be damaged at an unacceptably high rate.
- connection pipe when the connection pipe is partially bent, or abnormally deformed, the circulation of refrigerant is adversely affected.
- the size of the inner diameter in the connection pipe may change, adversely affecting the temperature of the refrigerant, and the cooling effect of the refrigeration device may decrease.
- connection pipe and methods of manufacturing and/or using the connection pipe for an evaporator of a refrigeration device e.g., refrigerator
- a refrigeration device e.g., refrigerator
- FIG. 5 is a diagram describing methods of manufacturing and/or using a connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.
- FIGS. 6 and 7 are diagrams describing a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.
- FIG. 8 is a diagram describing a function of the connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.
- a first step S′ 10 includes connecting a first pipe 110 and a second pipe 120 (e.g., to each other). As illustrated in FIG. 6 , a first end 116 of the first pipe 110 (which may be straight), and a first end 122 of the second pipe 120 (which may also be straight), are inserted into a tube 130 , and the tube 130 is subjected to high-frequency welding. While the welding is performed, a thermal contraction phenomenon may occur. Alternatively, the first pipe 110 and the second pipe 120 may be welded directly to each other, or the first pipe 110 and the second pipe 120 may be adhered to a sleeve similar to tube 130 , using glue or an adhesive. As a result, the first pipe 110 and the second pipe 120 are physically connected to each other.
- the length of the first pipe 110 may be shorter than that of the first pipe 10 according to the comparative example.
- the length of the first pipe 110 must be sufficient to form the first curvature portion 112 .
- the length of the second pipe 120 may be longer than that of the second pipe 20 according to the comparative example.
- the length of the second pipe 120 must be sufficient to form the second curvature portion 126 .
- a second step S′ 20 includes bending the connection pipe, preferably at least two times.
- the straight first pipe 110 is bent to form the first curvature portion 112
- the straight second pipe 120 is bent or angled to form the second curvature portion 126 , as illustrated in FIG. 7 .
- connection pipe has the first curvature portion 112 and the second curvature portion 126 at opposite sides or ends of the tube 130 .
- at least one first curvature portion 112 may be formed, and at least one second curvature portion 126 may also be formed. Bending directions of the first curvature portion 112 and the second curvature portion 126 may also be opposite of each other.
- an overall exterior shape of the connection pipe is a zigzag, angled, or curved shape.
- a curvature radius of the first curvature portion 112 and a curvature radius of the second curvature portion 126 may be different from each other.
- the first curvature angle c of the first curvature portion 112 according to exemplary embodiments of the present disclosure may be larger than 90° and smaller than 180°. For example, 120°-170°, 135°-160°, or any value or range of values greater than 90° and greater than 180°.
- the second curvature angle d of the second curvature portion 126 according to exemplary embodiments of the present disclosure may be smaller than 90°. For example, 45-80°, 60-75°, any value or range of values of at least 30° and less than 90°.
- the first end 116 and the second end 118 of the first pipe 110 form an acute angle.
- a first end 122 and a second end 124 of the second pipe 120 form an obtuse angle.
- a third step S 30 includes connecting the connection pipe with an accumulator 160 .
- the first pipe 110 of the connection pipe according to exemplary embodiments of the present disclosure is connected to the accumulator 160 .
- An evaporator 150 is at one side (e.g., an outside) of a wall 500 of the refrigeration device and the accumulator 160 is connected to the evaporator 150 .
- the first pipe 110 and the accumulator 160 are connected to each other by welding, and as a result, a welding portion 162 may be formed at a connector of the accumulator 160 .
- a fourth step S 40 in FIG. 5 includes connecting the connection pipe to the suction pipe 170 .
- the suction pipe 170 is connected to the second end 124 of the second pipe 120 according to exemplary embodiments of the present disclosure.
- the suction pipe 170 When the suction pipe 170 is connected to the connection pipe, the suction pipe 170 is pressed in the direction indicated by the arrow P1, as illustrated in FIG. 8 .
- the force or pressure P1 may act on the first pipe 110 , and the first pipe 110 may be deformed by the force or pressure P1.
- the force P1 may be specifically applied, so that a larger amount of force P1 may be applied on the second curvature portion 126 .
- the second pipe 120 may be copper, the second pipe 120 may be more rigid and secure through the first pipe 112 . As a result, the second curvature portion 126 may not be arbitrarily or inappropriately bent, damaged, or deformed.
- a force P2 (e.g., part of the force or pressure P1) may be distributed to the entire connection pipe via the tube 130 when the force P1 is applied in the direction indicated by the arrow P1 illustrated in FIG. 8 , to the second pipe 120 due to a the configuration of the second pipe 120 .
- the configuration refers to the curvature radius of the second curvature portion 126 that forms an angle or arc smaller than 90°, and as a result, the overall shape of the second pipe 120 forms an obtuse angle.
- connection pipe 170 is connected to the connection pipe 110 according to exemplary embodiments of the present disclosure, the suction pipe 170 is inserted to the connection pipe with a relatively large amount of force P1 but less force than the force P applied to the conventional connection pipe 10 , to securely connect the connection pipe and the suction pipe 170 to each other.
- the connection pipe may have sufficient rigidity to prevent the connection pipe from being deformed or damaged.
- the assembling or installation may be performed without requiring excessive attention regarding the deformation of the connection pipe, and as a result, it may be possible to improve productivity.
- connection pipe is prevented from being partially bent or deformed, and as a result, the refrigerant is effectively circulated.
- the size of an inner diameter of the connection pipe may not change, and as a result, the flow of the refrigerant is sufficiently maintained, and temperature of the refrigeration device is sufficiently maintained.
- the present connection pipe 110 having a smaller overall or total angle of curvature may generate about the same amount of noise as the connection pipe 10 when the refrigerant passes through, the cooling efficiency of the refrigerator containing the present connection pipe 110 is significantly greater than that of an otherwise identical refrigerator containing or using the conventional pipe 10 .
- the refrigeration device may be devices that maintain a low-temperature state by using a refrigeration cycle, such as a refrigerator and a freezer.
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Abstract
Description
- This application is based on and claims priority from Korean Patent Application No. 10-2013-0142063, filed on Nov. 21, 2013, the disclosure of which is incorporated herein in its entirety by reference.
- The present disclosure relates to a connection pipe and methods of and/or using the connection pipe for an evaporator of a refrigeration device, and more particularly, to a connection pipe and methods of manufacturing and/or using the connection pipe for an evaporator of a refrigeration device (e.g., a refrigerator) that can prevent the connection pipe from being deformed, and/or improve rigidity of the connection pipe when installing the evaporator. In the refrigeration device, the evaporator implements some or all of the function(s) in the refrigeration device, which has a refrigeration cycle that includes compression, condensation, expansion, and evaporation.
- In general, it is known that a refrigeration device, such as a refrigerator, can store fresh products, low-temperature products, and the like at a low temperature. Refrigerant is used to maintain the low temperature. The refrigerant is circulated in a refrigeration cycle that includes compression, condensation, expansion, and evaporation.
- The present disclosure relates to a connection pipe used when installing an evaporator in the refrigeration device.
- In general, the evaporator is configured to include an accumulator. The connection pipe connects the accumulator and a suction pipe.
- When the connection pipe is connected to the suction pipe, the suction pipe is pushed and/or inserted into the connection pipe. The connection pipe requires rigidity.
- However, when the applied force is not appropriately controlled, a specific section of the connection pipe is bent or deformed in a predetermined direction, and may become damaged (e.g., partially or completely closed).
- As described above, the connection pipe may be abnormally deformed, and the abnormal deformation adversely affects the circulation of the refrigerant. As a result, the connection pipe may require careful assembly at the time of manufacturing and/or installation of the refrigeration device. Accordingly, the manufacturing and/or installation yield may be lower than desired, a significant amount of time may be required to assemble the connection pipe, and as a result, productivity may decrease.
- In general, a circulation process of refrigerant, an evaporator, and a suction pipe is disclosed in Korean Patent Laid-Open Publication No. 10-2009-0128123 (Dec. 15, 2009).
- The present disclosure has been made in an effort to provide a connection pipe and methods of manufacturing and/or using the connection pipe for an evaporator capable of preventing the connection pipe from becoming inappropriately bent, damaged, or deformed at the time of installation.
- Embodiments of the present disclosure provide a connection pipe for an evaporator of a refrigeration device that including a
first pipe 10 with a first curvature portion; a second pipe with a second curvature portion; and a tube connecting ends of the first pipe and the second pipe. - The first curvature portion has a first curvature angle (a) that may be larger than 90° and smaller than 180°, the second curvature portion has a second curvature angle (b) that may be smaller than 90°, and the second pipe has first and second ends that may be at an obtuse angle.
- There may be a single first curvature portion and/or a single second curvature portion, and a curvature direction of the first curvature portion and a curvature direction of the second curvature portion may be opposite to each other (e.g., up versus down).
- The first pipe may comprise or consist of aluminum, and the second pipe may comprise or consist of copper.
- The first pipe and the second pipe may be connected to each other by high-frequency welding.
- Embodiments of the present disclosure provide a method of manufacturing and/or using a connection pipe including inserting a first pipe and a second pipe into a tube to physically connect the first pipe and the second pipe; and forming a first curvature portion in the first pipe and a second curvature portion in the second pipe. As a result, multiple curvature portions may be formed in the connection pipe after the first step.
- A first curvature angle a of the first curvature portion may be larger than 90° and smaller than 180°, a second curvature angle b of the second curvature portion may be smaller than 90°, and a first end of the second pipe and a second end of the second pipe may be at an obtuse angle.
- There may be a single first curvature portion and/or a single second curvature portion, and a curvature direction of the first curvature portion and a curvature direction of the second curvature portion may be opposite to each other (e.g., up versus down).
- In the first step, the first pipe, the second pipe, and the tube may be connected to each other by welding (e.g., high-frequency welding).
- Other detailed matters of the exemplary embodiments are included in the detailed description and the drawings.
- According to the connection pipe for an evaporator of a refrigeration device and methods of manufacturing and/or using the connection pipe according to the exemplary embodiments of the present disclosure, even though pressure is applied to the connection pipe to connect it to a suction pipe at the time of installation, deformation of the connection pipe may be prevented due to a structural characteristic of the connection pipe.
- According to the connection pipe and method(s) of the present disclosure, the connection pipe does not require excessive care at the time of assembling. As a result, the assembly time may decrease the installation and/or manufacturing yield may increase, and productivity may improve.
- The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
-
FIG. 1 is a diagram describing a manufacturing method of a connection pipe for an evaporator of a refrigeration device according to a comparative example. -
FIGS. 2 and 3 are diagrams describing a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to a comparative example. -
FIG. 4 is a diagram describing a function of the connection pipe for an evaporator of a refrigeration device according to the comparative example. -
FIG. 5 is a diagram describing a manufacturing method of a connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure. -
FIGS. 6 and 7 are diagrams describing a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure. -
FIG. 8 is a diagram describing an exemplary function of the connection pipe for an evaporator of a refrigeration device according to the exemplary embodiments of the present disclosure. - In the following detailed description, reference is made to the accompanying drawings, which forms a part hereof. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.
- Hereinafter, one or more exemplary embodiments of the present disclosure will be described more fully with reference to the accompanying drawings. As those skilled in the art will realize, the described exemplary embodiments may be modified in various ways, all without departing from the spirit or scope of the present disclosure, which is not limited to exemplary embodiments described herein. However, in the description of the present disclosure, a detailed explanation and a detailed illustration of known functions and constitutions may be omitted when it unnecessarily obscures the subject matter of the present disclosure. The accompanying drawings may not be illustrated to an actual scale, and some components may be enlarged for easier understanding of the present disclosure.
- Meanwhile, the terms used in the description are defined considering the functions in the present disclosure, and may vary depending on the intention or usual practice of a manufacturer. Therefore, the definitions should be based on the entire contents of the present specification.
- Similar or like reference numerals indicate similar or like elements throughout the specification.
- Hereinafter, a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to a comparative example will be described with reference to
FIGS. 1 to 4 . -
FIG. 1 is a diagram describing a manufacturing method of a connection pipe according to a comparative example.FIGS. 2 and 3 are diagrams describing a connection pipe and a manufacturing method of the connection pipe according to a comparative example.FIG. 4 is a diagram describing a function of the connection pipe according to the comparative example. - A first step S1 includes multi-bending a
first pipe 10. The multi-bending is described in more detail below. The straightfirst pipe 10 is bent or angled to have first andsecond curvature portions FIG. 2 . - The
first pipe 10 may be made of aluminum. As a result, thefirst pipe 10 may have flexibility and in particular, may be easily welded to an accumulator. - Meanwhile, a curvature radius of the
first curvature portion 12 and a curvature radius of thesecond curvature portion 14 may be different from each other. A first curvature angle a of thefirst curvature portion 12 according to the comparative example may be larger than 180° and a second curvature angle b of the second curvature portion 13 according to the comparative example may be larger than 100° and smaller than 180°. - A second step S2 includes connecting the
first pipe 10 and thesecond pipe 20. As illustrated inFIG. 3 , afirst end 16 of thefirst pipe 10 and afirst end 22 of thesecond pipe 20 are inserted into atube 30, and thetube 30 is subjected to high-frequency welding. While the welding is performed, a thermal contraction phenomenon may occur, and as a result, thefirst pipe 10 and thesecond pipe 20 are physically connected to each other. - The
second pipe 20 may be made of copper. As a result, thesecond pipe 20 may have high rigidity. - A third step S3 includes connecting the connection pipe to the accumulator 60. In more detail, as illustrated in
FIG. 4 , thefirst pipe 10 of the connection pipe is connected to the accumulator 60. Theevaporator 50 is outside of awall 400 of the refrigeration device and the accumulator 60 is connected to theevaporator 50. Thefirst pipe 10 and the accumulator 60 are connected to each other by welding, and as a result, awelding portion 62 is formed at a connector of the accumulator 60. - A fourth step S4 includes connecting the connection pipe with a
suction pipe 70. In more detail, as illustrated inFIG. 4 , thesecond pipe 20 of the connection pipe is connected to thesuction pipe 70. - When the
suction pipe 70 is connected to the connection pipe, thesuction pipe 70 is pressed in the direction indicated by the arrow P, as illustrated inFIG. 4 . The force P (e.g., pressure) may be applied to thefirst pipe 10, and thefirst pipe 10 may elastically deformed by the force P. However, a direction of the pressed force may be concentrated on thesecond curvature portion 14. Therefore, thesecond curvature portion 14 may be inappropriately bent, damaged, or deformed. In particular, since aluminum is lower in rigidity than copper, thefirst pipe 10 may be deformed or damaged in a particular location of relatively high stress and/or strain. - Meanwhile, the working space is relatively small and/or narrow in parts of the refrigeration device where the
evaporator 50 is installed, causing inconvenience to the installer during installation. It is difficult to manipulate and connect the connection pipe to thesuction pipe 70. Thus, additional attention and longer installation time are required, decreasing productivity. Thefirst pipe 10 may also be damaged at an unacceptably high rate. - As described above, when the connection pipe is partially bent, or abnormally deformed, the circulation of refrigerant is adversely affected. During the circulation of the refrigerant in the refrigeration cycle, the size of the inner diameter in the connection pipe may change, adversely affecting the temperature of the refrigerant, and the cooling effect of the refrigeration device may decrease.
- Hereinafter, a connection pipe and methods of manufacturing and/or using the connection pipe for an evaporator of a refrigeration device (e.g., refrigerator) according to exemplary embodiments of the present disclosure will be described with reference to
FIGS. 5 to 8 . -
FIG. 5 is a diagram describing methods of manufacturing and/or using a connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.FIGS. 6 and 7 are diagrams describing a connection pipe and a manufacturing method of the connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure.FIG. 8 is a diagram describing a function of the connection pipe for an evaporator of a refrigeration device according to exemplary embodiments of the present disclosure. - A first step S′10 includes connecting a
first pipe 110 and a second pipe 120 (e.g., to each other). As illustrated inFIG. 6 , afirst end 116 of the first pipe 110 (which may be straight), and afirst end 122 of the second pipe 120 (which may also be straight), are inserted into atube 130, and thetube 130 is subjected to high-frequency welding. While the welding is performed, a thermal contraction phenomenon may occur. Alternatively, thefirst pipe 110 and thesecond pipe 120 may be welded directly to each other, or thefirst pipe 110 and thesecond pipe 120 may be adhered to a sleeve similar totube 130, using glue or an adhesive. As a result, thefirst pipe 110 and thesecond pipe 120 are physically connected to each other. - The length of the
first pipe 110 according to exemplary embodiments of the present disclosure may be shorter than that of thefirst pipe 10 according to the comparative example. The length of thefirst pipe 110 must be sufficient to form thefirst curvature portion 112. - The length of the
second pipe 120 according to exemplary embodiments of the present disclosure may be longer than that of thesecond pipe 20 according to the comparative example. The length of thesecond pipe 120 must be sufficient to form thesecond curvature portion 126. - A second step S′20 includes bending the connection pipe, preferably at least two times. According to exemplary embodiments of the present disclosure, the straight
first pipe 110 is bent to form thefirst curvature portion 112, and the straightsecond pipe 120 is bent or angled to form thesecond curvature portion 126, as illustrated inFIG. 7 . - The connection pipe according to exemplary embodiments of the present disclosure has the
first curvature portion 112 and thesecond curvature portion 126 at opposite sides or ends of thetube 130. In more detail, at least onefirst curvature portion 112 may be formed, and at least onesecond curvature portion 126 may also be formed. Bending directions of thefirst curvature portion 112 and thesecond curvature portion 126 may also be opposite of each other. As a result, an overall exterior shape of the connection pipe is a zigzag, angled, or curved shape. - Meanwhile, a curvature radius of the
first curvature portion 112 and a curvature radius of thesecond curvature portion 126 may be different from each other. The first curvature angle c of thefirst curvature portion 112 according to exemplary embodiments of the present disclosure may be larger than 90° and smaller than 180°. For example, 120°-170°, 135°-160°, or any value or range of values greater than 90° and greater than 180°. The second curvature angle d of thesecond curvature portion 126 according to exemplary embodiments of the present disclosure may be smaller than 90°. For example, 45-80°, 60-75°, any value or range of values of at least 30° and less than 90°. Thefirst end 116 and thesecond end 118 of thefirst pipe 110 form an acute angle. Afirst end 122 and asecond end 124 of thesecond pipe 120 form an obtuse angle. - A third step S30 includes connecting the connection pipe with an
accumulator 160. In more detail, as illustrated inFIG. 8 , thefirst pipe 110 of the connection pipe according to exemplary embodiments of the present disclosure is connected to theaccumulator 160. Anevaporator 150 is at one side (e.g., an outside) of awall 500 of the refrigeration device and theaccumulator 160 is connected to theevaporator 150. Thefirst pipe 110 and theaccumulator 160 are connected to each other by welding, and as a result, awelding portion 162 may be formed at a connector of theaccumulator 160. - A fourth step S40 in
FIG. 5 includes connecting the connection pipe to thesuction pipe 170. In more detail, as illustrated inFIG. 8 , thesuction pipe 170 is connected to thesecond end 124 of thesecond pipe 120 according to exemplary embodiments of the present disclosure. - When the
suction pipe 170 is connected to the connection pipe, thesuction pipe 170 is pressed in the direction indicated by the arrow P1, as illustrated inFIG. 8 . The force or pressure P1 may act on thefirst pipe 110, and thefirst pipe 110 may be deformed by the force or pressure P1. However, the force P1 may be specifically applied, so that a larger amount of force P1 may be applied on thesecond curvature portion 126. - However, since the
second pipe 120 may be copper, thesecond pipe 120 may be more rigid and secure through thefirst pipe 112. As a result, thesecond curvature portion 126 may not be arbitrarily or inappropriately bent, damaged, or deformed. - A force P2 (e.g., part of the force or pressure P1) may be distributed to the entire connection pipe via the
tube 130 when the force P1 is applied in the direction indicated by the arrow P1 illustrated inFIG. 8 , to thesecond pipe 120 due to a the configuration of thesecond pipe 120. The configuration refers to the curvature radius of thesecond curvature portion 126 that forms an angle or arc smaller than 90°, and as a result, the overall shape of thesecond pipe 120 forms an obtuse angle. - Therefore, since the working space is relatively small or narrow in parts of the refrigeration device at the location of the
evaporator 150, the installer may be inconvenienced during installation. When thesuction pipe 170 is connected to theconnection pipe 110 according to exemplary embodiments of the present disclosure, thesuction pipe 170 is inserted to the connection pipe with a relatively large amount of force P1 but less force than the force P applied to theconventional connection pipe 10, to securely connect the connection pipe and thesuction pipe 170 to each other. The connection pipe may have sufficient rigidity to prevent the connection pipe from being deformed or damaged. - The assembling or installation may be performed without requiring excessive attention regarding the deformation of the connection pipe, and as a result, it may be possible to improve productivity.
- As described above, the connection pipe is prevented from being partially bent or deformed, and as a result, the refrigerant is effectively circulated. During the circulation of the refrigerant, the size of an inner diameter of the connection pipe may not change, and as a result, the flow of the refrigerant is sufficiently maintained, and temperature of the refrigeration device is sufficiently maintained. Although the
present connection pipe 110 having a smaller overall or total angle of curvature may generate about the same amount of noise as theconnection pipe 10 when the refrigerant passes through, the cooling efficiency of the refrigerator containing thepresent connection pipe 110 is significantly greater than that of an otherwise identical refrigerator containing or using theconventional pipe 10. These results provided by the present invention are unexpected. - The refrigeration device may be devices that maintain a low-temperature state by using a refrigeration cycle, such as a refrigerator and a freezer.
- Although exemplary embodiments of the present disclosure are described above with reference to the accompanying drawings, those skilled in the art will understand that the present disclosure may be implemented in various ways without changing the necessary features or the spirit of the present disclosure.
- Therefore, it should be understood that the exemplary embodiments described above are not limiting, but only an example in all respects, the scope of the present disclosure is expressed by the claims below, not the detailed description, and all of the changes and modifications achieved from the meanings and scope of claims and equivalent concepts are included in the scope of the present disclosure.
- From the foregoing, it will be appreciated that various embodiments of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. The exemplary embodiments disclosed in the specification of the present disclosure will not limit the present disclosure. The scope of the present disclosure will be interpreted by the claims below, and it will be construed that all techniques within the scope equivalent thereto belong to the scope of the present disclosure.
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2013-0142063 | 2013-11-21 | ||
KR1020130142063A KR101586540B1 (en) | 2013-11-21 | 2013-11-21 | Pipe connection and manufacturing method of Pipe connection for evaporator of Refrigeration device |
Publications (2)
Publication Number | Publication Date |
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US20150137512A1 true US20150137512A1 (en) | 2015-05-21 |
US10240828B2 US10240828B2 (en) | 2019-03-26 |
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Family Applications (1)
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US14/101,269 Expired - Fee Related US10240828B2 (en) | 2013-11-21 | 2013-12-09 | Connection pipe and methods of manufacturing and using a connection pipe for an evaporator of a refrigeration device |
Country Status (3)
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US (1) | US10240828B2 (en) |
KR (1) | KR101586540B1 (en) |
CN (1) | CN104654673B (en) |
Cited By (4)
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CN105397442A (en) * | 2015-12-07 | 2016-03-16 | 苏州慧捷自动化科技有限公司 | Automatic tube coiling and assembly machine for evaporator of snow melting machine |
CN105414857A (en) * | 2016-01-06 | 2016-03-23 | 合肥长城制冷科技有限公司 | Novel welding fixture of wire tube evaporator |
US10006686B2 (en) | 2015-06-17 | 2018-06-26 | Dongbu Daewoo Electronics Corporation | Refrigerator and method for manufacturing the same |
JPWO2021260985A1 (en) * | 2020-06-24 | 2021-12-30 |
Families Citing this family (3)
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CN109882670A (en) * | 2019-03-27 | 2019-06-14 | 浙江华格供应链服务有限公司永康分公司 | A kind of pipe fitting joint structure on automobile refrigeration system |
KR102463869B1 (en) * | 2020-09-25 | 2022-11-04 | 엘지전자 주식회사 | Refrigerator and manufacturing method thereof |
EP4206564A1 (en) | 2021-12-30 | 2023-07-05 | Arçelik Anonim Sirketi | A cooling device |
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Also Published As
Publication number | Publication date |
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KR101586540B1 (en) | 2016-01-18 |
CN104654673A (en) | 2015-05-27 |
KR20150058820A (en) | 2015-05-29 |
CN104654673B (en) | 2017-07-25 |
US10240828B2 (en) | 2019-03-26 |
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